Through Authenticate 
We use Columbus ZONA butted oval tubes to create great response for riding.
The STEAM series reveals a strong personalty of the steel frame, without the color, we use laser cut on the nickel plating surface, after clear coating and anti rust process, it take us back to the day that full of the functional mechanicals without decoration. Welcome to the age of STEAM.
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XS
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S
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M
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L
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A. Head tube lenght
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92mm
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92mm
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100mm
|
120mm
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B. Head tube angle
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71.5°
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71.5°
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72°
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72°
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C. Top tube lenght
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515mm
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515mm
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525mm
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540mm
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D. Seat tube angle
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460mm
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480mm
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520mm
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540mm
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E. Seat tube length
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74°
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74°
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74°
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74°
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F. Seat tube diameter
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28.6mm
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28.6mm
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28.6mm
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28.6mm
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G. Chain stay length
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405mm
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405mm
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405mm
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405mm
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H. Chain stay angle
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64°
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64°
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64°
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64°
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I. BB drop
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65mm
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65mm
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65mm
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65mm
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